ᐅ Shading options? Roller shutters, sun sails, venetian blinds, awnings

Would you have some tips on shading? We want to keep the heat outside but still allow the light in.

The simplest solution would be roller shutters everywhere plus a sunshade sail for the south-facing terrace (we don’t like the look of an awning), which would also shade the south-facing living room windows overlooking the garden.

Alternatives would be:

(1) No shading at all or only interior curtains/blinds/pleated blinds
This could work for the north-facing street-side windows (kitchen, study, guest toilet) as well as the west-facing windows of the upstairs bathroom
would save costs

(2) Venetian blinds
We don’t like the way they look from the inside

(3) Vertical blinds, drop-arm awnings, or markisolette blinds
Possibly with semi-transparent fabrics

Would option (3) be combinable with roller shutters, or is it not possible to have both at the same time?
At least one combined solution was found at Gunkel-Rollladen:
link removed by moderation
But that seems to be a rather uncommon special solution.
For burglary protection, roller shutters are not necessarily required; burglar-resistant window frames are more important, especially since break-ins often happen during the day.
Other ideas:
1) The master bedroom should be completely dark, so roller shutters are definitely needed here.
2) For the children’s rooms above the living room with floor-to-ceiling south-facing windows, a solution will have to be found.
3) Lowering all roller shutters during the day for heat protection won’t work; it would make the house too dark for us.